Simple Terrestrial Laser Scanner for Measuring Streambank Retreat
Publication: Journal of Hydraulic Engineering
Volume 142, Issue 11
Abstract
High-resolution measurements of streambank retreat (SBR) rates are important for engineering applications, such as infrastructure planning and stream restoration. Conventional methods of measuring SBR, such as erosion pins or total stations, lack sufficient point density to accurately capture the spatial variability of bank retreat over an entire streambank surface. This paper presents a newly developed terrestrial laser scanner (TLS) that is affordable, robust, and simple. The TLS was employed to profile a wide portion of a meander bend on Clear Creek in Coralville, Iowa. Bank profiles were acquired in July 2012 and July 2013; the resulting subtraction yielded a mean SBR rate of , with a maximum of 3.7 m at the upper portion of the bank.
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Acknowledgments
The authors gratefully acknowledge partial support from the National Science Foundation grant #0741410. Thanks are also given to Adam Thompson, Brandon (William) Willis, Paul Wittau, and Taylor McClendon for their support in setting up the surveys and for arduous excavation of the buried transformation stakes.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 142 • Issue 11 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Nov 6, 2013
Accepted: Mar 23, 2016
Published online: Jun 17, 2016
Published in print: Nov 1, 2016
Discussion open until: Nov 17, 2016
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